Solar Energy & Solar Power Resources

Solar Power in 78231 (San Antonio, TX)

Solar Energy in 78231

Sorry, historical solar radition values for 78231 are currently unavailable, please check back later.

Solar Panels in 78231

Solar panels in 78231 that will produce the maximum solar energy output. [More]

Sunrise & Sunset in 78231

The total length of the day in 78231 (San Antonio, TX) today (December 21, 2025) will be 10 hours and 18 minutes. [More]

Solar Energy in 78231 (San Antonio, TX)

Solar Energy Data for 78231

See the chart below to see how different types of solar panel installations compare in 78231.

Historical solar power output data for San Antonio is not currently available.

Solar Energy Analysis for 78231

Sorry, it is not possible to complete our solar energy analysis for 78231 at this time.

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Solar Energy Glossary

Global Horizontal Irradiance (GHI)

Global Horizontal Irradiance: The total amount of solar radiation that is received per unit area by a surface that is always positioned in a horizontal manner.

Direct Normal Irradiance (DNI)

Direct Normal Irradiance: The total amount of solar radiation received per unit area by a surface that is always perpendicular to the sun rays that come in a straight line from the direction of the sun at its current position in the sky.

Average Tilt at Latitude (ATaL)

Average Tilt at Latitude: The total amount of solar radiation received per unit area by a surface that is tilted toward the equator at an angle equal to the current latitude. ATaL will often produce the optimum energy output.

Solar Radiation Levels in 78231

Solar Radiation Data in 78231

See the chart below for monthly solar radiation levels in 78231.

Sorry, data is not currently available.

Solar Radiation Analysis for 78231

Sorry, it is not possible to complete our solar radiation analysis for 78231 at this time.

Historical solar radiation data for 78231 is not currently available.

Please check back later.

Solar Power Comparison: 78231 vs. the U.S.

Solar Power Levels in 78231

Sorry, solar radiation data for 78231 is not currently available.

Solar Power: 78231 vs. the U.S.

Below is a month-by-month comparison of how average 78231 solar radiation levels compare to average levels in a city with historcially high levels (NV) and a city with historically low levels (WA). ^[1]

Sorry, solar radiation data for Texas is not currently available.

Solar Data & Statistics for 78231

Sunrise / Sunset in 78231

Sunrise/Sunset for December 21, 2025 ^[2]
- Sunrise: 7:23 am
- Sunset: 5:41 pm
- Length of Day: 10:18

Best Months for Solar in 78231

Monthly data not currently available.

Solar Panel Installs in 78231

We do not have data on solar panel installations in ZIP Code 78231 at the current time.

Solar Power Output in 78231

The Power of Solar in 78231

Monthly AC solar system output averages for 78231. Month-by-month solar power, as ranked by AC output, in 78231. ^[2]

AC output data is not currently available.

Solar Output Analysis for 78231

Sorry, it is not possible to complete our solar radiation analysis for 78231 at this time.

Historical solar radiation data for 78231 is not currently available.

Please check back later.

Weather Forecast for 78231 ^[5]

Sun Dec 21

59°F

Sky Is Clear
Min: 51°F
Max: 73°F

Gentle Breeze: 12 mps N
Precip.: n/a
Humidity: 51%
Cloud cover: 0%

Mon Dec 22

66°F

Overcast Clouds
Min: 56°F
Max: 73°F

Gentle Breeze: 10 mps S
Precip.: n/a
Humidity: 83%
Cloud cover: 95%

Tue Dec 23

76°F

Scattered Clouds
Min: 62°F
Max: 78°F

Gentle Breeze: 12 mps SE
Precip.: n/a
Humidity: 60%
Cloud cover: 48%

Wed Dec 24

74°F

Broken Clouds
Min: 61°F
Max: 79°F

Gentle Breeze: 11 mps SSE
Precip.: n/a
Humidity: 63%
Cloud cover: 68%

Thu Dec 25

74°F

Overcast Clouds
Min: 64°F
Max: 78°F

Gentle Breeze: 11 mps S
Precip.: n/a
Humidity: 69%
Cloud cover: 100%

Fri Dec 26

77°F

Broken Clouds
Min: 66°F
Max: 82°F

Light breeze: 6 mps SW
Precip.: n/a
Humidity: 65%
Cloud cover: 74%

More about 78231

About 78231

The ZIP code 78231 is associated with the city of San Antonio in Bexar County in Texas.

78231 Solar Energy & Power

To learn more about solar energy and solar power in 78231, or for more solar-related resources for TX, check out the U.S. Energy Information Administration.